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Port forwarding – Siemens SE505 User Manual

Page 85

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84

Configuration with Advanced Setup

Gigaset SE505 dsl/cable / English / A31008-E505-B100-1-7619 / configure_router.fm / 16.07.2003

Port Forwarding

Port Forwarding (the forwarding of requests to particular ports) is needed when you

wish to operate

Server

services for the Internet on a PC in your LAN. For example, on

one of your PC's you could run a Web server which provides HTML pages. In this case the

router acts as the

Virtual server

, forwarding requests for an HTML page from the

Internet to the designated PC on which the Web server is running. Externally the router

takes on the role of the server. It receives requests from remote users under its public IP

address and automatically redirects them to local PC's. The private IP addresses of the

servers on the local network remain protected.
Internet services are addressed by defined

Ports

. The router needs a mapping table of

the port numbers to redirect the service requests to the server that actually provides the

service. You must create this mapping table.

To set up Port Forwarding for a service, select Port Forwarding in the Virtual server

menu.

i

You will find an example of Port Forwarding in "Practical Tips and

Configuration Examples" on the CD supplied.